/*
 * Copyright (C) 2011 Cyril Mottier (http://www.cyrilmottier.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.cyrilmottier.android.gdcatalog;

import greendroid.app.GDActivity;
import greendroid.widget.PageIndicator;
import greendroid.widget.PagedAdapter;
import greendroid.widget.PagedView;
import greendroid.widget.PagedView.OnPagedViewChangeListener;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.TextView;

public class PagedViewActivity extends GDActivity {

	private static final int PAGE_COUNT = 7;
	private static final int PAGE_MAX_INDEX = PAGE_COUNT - 1;

	private PageIndicator mPageIndicatorNext;
	private PageIndicator mPageIndicatorPrev;
	private PageIndicator mPageIndicatorOther;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setActionBarContentView(R.layout.paged_view);

		final PagedView pagedView = (PagedView) findViewById(R.id.paged_view);
		pagedView.setOnPageChangeListener(mOnPagedViewChangedListener);
		pagedView.setAdapter(new PhotoSwipeAdapter());

		mPageIndicatorNext = (PageIndicator) findViewById(R.id.page_indicator_next);
		mPageIndicatorNext.setDotCount(PAGE_MAX_INDEX);
		mPageIndicatorNext.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				pagedView.smoothScrollToNext();
			}
		});

		mPageIndicatorPrev = (PageIndicator) findViewById(R.id.page_indicator_prev);
		mPageIndicatorPrev.setDotCount(PAGE_MAX_INDEX);
		mPageIndicatorPrev.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				pagedView.smoothScrollToPrevious();
			}
		});

		mPageIndicatorOther = (PageIndicator) findViewById(R.id.page_indicator_other);
		mPageIndicatorOther.setDotCount(PAGE_COUNT);

		setActivePage(pagedView.getCurrentPage());
	}

	private void setActivePage(int page) {
		mPageIndicatorOther.setActiveDot(page);
		mPageIndicatorNext.setActiveDot(PAGE_MAX_INDEX - page);
		mPageIndicatorPrev.setActiveDot(page);
	}

	private OnPagedViewChangeListener mOnPagedViewChangedListener = new OnPagedViewChangeListener() {

		@Override
		public void onStopTracking(PagedView pagedView) {
		}

		@Override
		public void onStartTracking(PagedView pagedView) {
		}

		@Override
		public void onPageChanged(PagedView pagedView, int previousPage, int newPage) {
			setActivePage(newPage);
		}
	};

	private class PhotoSwipeAdapter extends PagedAdapter {

		@Override
		public int getCount() {
			return PAGE_COUNT;
		}

		@Override
		public Object getItem(int position) {
			return null;
		}

		@Override
		public long getItemId(int position) {
			return 0;
		}

		public View getView(int position, View convertView, ViewGroup parent) {
			if (convertView == null) {
				convertView = getLayoutInflater().inflate(R.layout.paged_view_item, parent, false);
			}

			((TextView) convertView).setText(Integer.toString(position));

			return convertView;
		}

	}
}
